VAT / GST Calculator

How to use VAT / GST Calculator

1. Open VAT / GST Calculator in your browser — it loads instantly and works offline once cached.
2. Enter your values in the input fields. Every field is labelled so you know exactly what to type.
3. The result updates automatically as you type — there is no "submit" round-trip to a server.
4. Adjust any input to compare scenarios and see how the outcome changes in real time.
5. Copy or note the result. Nothing you enter is stored or sent anywhere.

Why use VAT / GST Calculator?

• 100% free with no limits, no sign-up and no watermarks.
• Private by design — your data are processed in your browser and never uploaded to a server.
• Fast and lightweight, with instant results even on a phone or a slow connection.
• Works everywhere — any modern browser on Windows, macOS, Linux, Android or iOS.
• Part of a full financial calculators suite, so related vat tasks are one click away.

What people use VAT / GST Calculator for

• Adding VAT or GST to a net price for an invoice.
• Extracting the tax portion from a gross price on a receipt.
• Checking that a supplier's invoice arithmetic is right.

VAT / GST Calculator: limits and things worth knowing

• Removing tax is not the same as subtracting the rate. At 20%, the tax inside a £120 gross price is £120 ÷ 1.2 = £100 net, so £20 tax — not £120 × 0.20 = £24, which is the common mistake.
• Rates vary widely: the UK is 20% standard with reduced and zero rates, India's GST runs in several slabs, and Gulf VAT is typically 5%. Apply your own jurisdiction's rate.
• Businesses registered for VAT generally reclaim input tax, so the headline rate is a cost only to the end consumer and to unregistered businesses.
• Rounding rules differ between jurisdictions and can cause small discrepancies on multi-line invoices; the tax authority's rule takes precedence over the arithmetic here.

Is it private and secure?

Your privacy is built in. VAT / GST Calculator runs completely on your device, so whatever you enter stays in your browser and is never transmitted, logged or stored on any server.

Network activity: none. Nothing is sent and nothing is fetched. This tool makes no network request at all once the page has loaded — which is why it keeps working if your connection drops.

You do not have to take that on trust — our privacy proof page publishes the Content-Security-Policy that enforces it, lists every third party it permits, and shows how to verify the whole claim yourself.

Learn more

Why Browser-Based Tools Are Safer for Your Files — Most online converters upload your files to a server. Client-side tools don't. Here's why that difference matters for privacy.